hussey



(No Model.) 2 Sheets-Sheet 1.

J. W. HUSSEY. APPARATUS FOR MAKING HALF ROUNDS.

170. 578,877. Patented Mar. 16, 1897.

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2 Sheets-Sheet 2. J. W. HUSSEY. APPARATUS FOR MAKING HALFROUNDS.No.578,'877.

Patented Mar. 16, 1897.

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UNITED STATES :ATENT O FICE.

JOHN W. HUSSEY, OF BROOKLYN, NEW YORK, ASSIGNOR OF ONE-HALF TO CLARENCEW. SEAMANS, OF SAME PLACE.

APPARATUS FOR MAKING HALF-ROUNDS.

SPECIFICATION forming part of Letters Patent No. 578,877, dated March16, 1897.

Application filed April 1, 1895. Serial No. 544,037. (No model.)

To all whom it may concern.-

Be it known that I, JOHN W. HUSSEY, a citi- Zen of the United States,and a resident of Brooklyn, in the county of Kings and State of NewYork, have invented certain new and useful Apparatus for MakingHalf-Rounds, &c., of which the following is a specification.

My invention has for its main object to provide a machine formanufacturing what is known in the art as half-rounds, which areimplements made of iron or steel employed in the quarrying of stone.

In getting out slabs or blocks of stone from the rock round holes aredrilled a few inches apart along a line about equal in length to theslab to be taken or produced, and a pair of half -rounds is inserted ineach of said holes. Wedges are then driven in between the pairs ofhalf-rounds, and by forcing the wedges down farther and farther andcausing the half-rounds to spread more and more the stone slab isfinally separated from the body of rock or granite. The half-rounds aretapering from top to bottom, being smaller at the upper end, so thatwhen two are put together in the drilled hole they do not fill the upperend of the hole, and hence may be forced apart by the entering wedgewithout practically disturbing the lower ends of the half-rounds, whichremain together and substantially fill the bottom portion of thecircular hole. The half-rounds are provided with shoulders or flanges attheir upper ends, which overhang or catch upon the rock and slab afterseparation of the slab or out, and

thus prevent the half -rounds from falling down between the cut and thebody of the rock and facilitate the picking off or removal of thehalf-rounds after the slicing operation. The half-rounds are also bentoutwardly at their upper ends to form a V-shaped are arranged cross-barsfor supporting the blank edgewise in a vertical position as it passesthrough the furnace to the press. The furnace may be of any suitablelength, as, for example, six feet, and of any suitable width and height,as, for example, eight inches. The blank is held upright and is guidedby lateral guide-bars arranged above the series of cross-bars abovereferred to. The coal is preferably piled up to the said cross-bars andthe flames extend up to near the top of the furnace or trough. The smokeand products of combustion are caught by an overlying hood leading to achimney. Between the furnace and the cast-iron pressor formingmachine isa suitable space, as, for example, three inches, for the circulation ofair in order that the press may not become too hot. The blank is passedto the press red-hot, being put cold into the furnace at one end andshoved along therethrough, either by a tool or automatically, one blankpreferably following another and abutting thereagainst. As the blankleaves the furnace it passes through a guide-opening on the side of thepress, which opening is preferably shaped to correspond with thecross-section of the blank, which is wedge-shaped or tapered, beingthicker at one edge than at the other.

Preferably the blank is fed with the thinner edge uppermost. From theguide-plate at the side of the press, which is also a shearing-die, theforward end of the blank passes in front of a fixed female die, which isso made as to form also a gage for the feed of the blank.

On a guided bar or slide is fixed a male forming and shearing die, andsaid slide is connected to a pitman which is worked by an eccentric orcrank shaft. Both forming-dies are detachably connected, so that otherdies for making other forms or other lengths or sizes may take theirplaces in the same machine. The die and guide at the side of the machineis made adjustable to bring its central slot or passage-way to anydesired angle 9 relatively to the reciprocating male die, whereby atapering or gradual cut may be made. The side die is also removable forthe purpose of substituting other dies for other shapes or sizes. Theblank is fed across the face of the female die while the male die isseparated therefrom, and as the male die advances it operates to cut offa suitable quantity of the hotmetal to make a half-round and to force itinto the female die and produce by pressure a device of the desiredshape. On the slide is provided a means for automatically pulling thehalf-round out of the female die on the back stroke of the male die.

The side die is made hollow and a continuous stream of cold water iscirculated therethrough to keep said die and the formingdies cool,particularly the male die, which is made of hardenedsteel, to facilitatethe cutting or shearing operation.

Other features and further details of construction and modes ofoperation will be more fully described hereinafter.

My invention consists in certain features of construction andcombinations of devices, all as will be hereinafter more fullydescribed, and particularly set forth in the appended claims.

In the accompanying drawings, Figure 1 is a plan view, reduced scale, ofthe press or forming-machine and the furnace with a blank or platetherein and shown as having entered the press. Fig. 2 is a side view ofthe press on a larger scale with the blank in section. Fig. 3 is across-section of the furnace with the blank in feeding position. Fig.tis a perspective view of one of the half-rounds when finished. Fig. 5is a partial perspective view of the blank or plate from which saidhalf-round is made. Fig. 6 is an elevation of two half-rounds placedtogether in operative position and with the wedge inserted in theopening formed at the upper ends of said half-rounds. Fig. 7 is avertical section on a still larger scale, taken at the line X X of Fig.8; and Fig. 8 is a horizontal section of the press, taken at the line VW of Fig. 2.

In the several views the same parts will be found designated by the samenumerals ofreference.

I shall first describe the construction of the press or machine, whichis mounted upon a suitable bed-plate or foundation 1. In suitable Waysor guides 2, formed in the body of the press, reciprocates avertically-arranged slide 3, to the rear end of which is pivotallyconnected one end of a pitman 4, whose opposite end is attached bycollars 5 and bolts 6 to a crank or eccentric 7 on a shaft 8, mounted inbearings in the sides of the press, and provided at one end with aband-pulley 9 for application of the motive power.

To the front end of the slide 3 is attached the male die 10, the workingface of which is shaped to correspond with the inner side or face of thehalf-round, as shown more particularly at Figs. 7 and 8, having aplanevertical face for the major portion of its length and a curvedforwardly-projecting face at its upper end. This die is extendedlaterally the full width of the slide and is formed centrally at itsrear with a vertical dovetailed rib 11, which enters a correspondinggroove 12 in the slide and is secured firmly therein by side wedges 14:,which also act to draw the shoulders 13 of the die tight against theface of the slide.

The female die 15 is attached to the solid end 16 of the body of thepress, which has a vertical dovetailed groove 17 to receive the centraldovetailed rib 18 on the die. The die 15 is extended laterally to equalthe width of the male die, and, like thelatter, its shoulders 19 areheld firmly against the solid end of the press by means of wedges 20.

The working face of the female die is hollow or grooved and shaped tocorrespond with the outer side of the halfround.

Below and in line with the face of the female die is an opening 21 forthe escape of the finished half-round on the return move ment of themale die.

To obviate the liability of the half-round sticking in the female die, Ihave provided a spring-hook 22, which is screwed onto the top of theslide and which on the backward stroke of the same is adapted to catchupon the point of the half-round and positively pull it away from thedie and permit it to fall out of the machine through the opening 21.

On that side of the press contiguous to the working faces of the dies isarranged a device 23, which performs several functions. It is madecircular in contour, preferably, and fits into a like depression 24 inthe side of the press. The said device comprises a back plate 25, afront plate 26, connected at the perimeters, an intermediate space orchamber 27, a pair of vertical walls or webs 28, connecting the frontand back plates centrally, and a circular flange 30, by which the deviceis attached to the side of the press by means of screws or bolts 31,passing through segmental slots 32, as shown at Figs. 2 and 8 A verticalopening 33 extends through the device from the front to the back plate,which opening forms a passage-way and guide for the blank to be operatedupon and in contour matches the cross-section of the blank.

The back plate 25 constitutes also a cuttingdie, the edge of the opening33 therein cooperating with the outer vertical contiguous edgeof themale die to effect a cutting or shearing of the projected end of theblank to be converted into a half-round. These cutting-dies and thefemale die are of hardened steel.

To prevent loss of temper in the dies and also to prevent expansion anddistortion thereof and of adjacent parts, due to the presence of thered-hot blanks, I pass cold water through the space or chamber 27 andthereby maintain the parts in a comparatively cool condition. Thecold-water-inlet pipe 34 may be screwed into the front plate 26 on oneside of the guide-opening and the outlet-pipe 35 into said plate on theopposite side of said opening, the water coming from any suitable sourceof supply and circulating or passing through said chamber, the portionsthereof on the sides of the guide-opening communicating with each otherabove said opening.

On the front plate 26 is bolted a flaring or funnel-shaped guide 36 todirect the incoming blank properly into the guide-opening leading to thedies.

I shall now describe the furnace, which is arranged at right angles tothe press and preferably distant therefrom a few inches, so as to avoidunduly heating the press.

37 37 represent the side walls of the furnace, which may be of brick orother fireproof material.

At a suitable height from the base of the furnace is arranged a grate38, extending the entire length of the structure. Cross-bars 39 extendfrom wall to wall at a suitable elevation above the grate, which ispreferably covered with coal 40 up to the under sides of the cross-bars.These cross-bars, of which any desired number may be used, are employedto support the blank or plate 41 while being heated in and during itspassage through the furnace. The blank is maintained in an uprightposition by a pair of parallel guide-bars 42, running the entire'lengthof the furnace and centrally thereof. The guide-bars are bolted toangular brackets 43, which in turn are attached to the walls of thefurnace. The space between the guide-bars is arranged substantially inline with the opening 33, leading to the dies.

As will be seen, the blank is tapering or wedge-shaped in crosssection,and in feed-.

ing it through the furnace and into the press I prefer to place orarrange its thicker edge downward nearer the fire in consequenceof thisportion of the blank requiring more heat than the thinner, and alsobecause the handling and feeding of the blank are somewhatfacilitatedthereby.

Above the furnace is a hood 44 to carry off the products of combustionto a flue or chimney.

The finished half-round consists of a shank, half-round on one side, asat 45, flat or plane on the other, as at 46, and of an outwardlycurvedtop 47, having a shoulder or notch 48. The female die corresponds inshapewith the half-round side and the male die with the flat or planeside of the tool, which is tapering, as shown. WVhen two such devicesare placed together, as shown at 6, a circular tapering two-partimplement is formed, with a flaring mouth for the introduction of thewedge 49, which spreads the parts in the rock and finally rends thesame.

The mode of making the half -rounds is as follows: The plate or blank41, preferably of rolled steel and of the form shown, is slid into thefurnace between the guide-bars 42 and with one edge resting upon thesupporting cross-bars. When said blank has received a sufficient amountof heat, it is moved forward, so that its inner end passes into theflaring guide or mouth 36 and thence through the across the face of thefemale die until it abuts against the projecting portion 50 of said die,which forms a stop for the feed movement of the blank and serves toregulate the quantity of metal supplied for each action of theforming-dies, the said stop being in alinement with the guide-opening33. The male die now advances, and its outer vertical edge, acting inconjunction with the inner vertical edge of the guide-opening, cuts orshears off the projected end of the blank, while at the same time thesaid male die carries the said projected or measured portion of theblank 011- ward and crowds or presses it into the female die withconsiderable pressure or force, thereby causing the metal to conform tothe contour of said die and to the face of the male die. Immediately thehalf-round is thus pressed into shape or forged the male die recedes,and in this movement the spring-hook catches upon the point or upper endof the half-round and pulls it away from the stationary female die, thusinsuring its escape through the outlet 21. On the retrograde movement ofthe male die the blank is again shoved forward against the stop andenough metal measured off for the neXt device. Then the male dieadvances, cuts it off, and, together with the female die, forms anotherhalf-round as before.

The die-plate or guide-plate 23 is preferably so adjusted to the pressas that the guideopening 33 stands at a slight angle to the ver- Theblanks may be fed through the furnace,

either by hand-tools or automatically, by the cross-bar 51, pulled byweights 52, attached to chains 53, running through guides 54 and overpulleys 55.

It will be seen from the drawings and from the foregoing description ofthe construction and mode of operation of the apparatus that I amenabled to rapidly and cheaply manufacture the half-rounds and producethem with great accuracy and uniformity, something not hithertoaccomplished, all such de- Vices having been previously made'by hand,not only slowly and expensively, but with considerable lack ofregularity as to size and shape.

WVhile my improvements relate more especially to the manufacture ofhalf-rounds, they may be employed, with a change of dies,

to make other articles, and hence I do not wish to be restrictedaltogether to the making of half-rounds.

Various changes in details of construction and arrangement may be madewithout departing from the spirit of my improvements.

That I claim as new, and desire to secure by Letters Patent, is-

l. The combination of a stationary forming-die, a combined reciprocatoryshearing and forming die, arranged in alinement therewith, and alaterally-arranged independent stationary guiding and shearing diecontiguous to and with its guide-opening in advance of the stationaryforming-die and cooperatin g with the reciprocatory forming and shearingdie; the construction and arrangement being such that the reciprocatorydie in connection with the lateral die first cuts off the forward end ofthe blank, fed transversely through the lateral die, and then forces thedetached portion of the blank into the stationary forming-die, and incooperation therewith presses the blank into the desired shape, as setforth.

2. The combination with a stationary forming-die, and a reciprocatoryshearing and forming die, of a laterally arranged independent,stationary shearing-plate having a guide-opening through its bodycontiguous to the forming-die, as set forth.

3. The combination with a stationary forming-die provided with anintegral stop, of a reciprocating forming-die having a shearing edge,and a lateral independent, stationary die cooperatin g with the shearingedge of the reciprocating die, and having formed in its body a lateralpassage-way for the blank arranged in line with said stop; substantiallyas described.

4. The combination with a stationary forming-die and a reciprocatingforming-die having a shearing edge, of an independent lateral adjustableshearingdie cooperating with the latter and having a guide-opening forthe passage of the blank; substantially as described.

5. The combination with a stationary forming-die and a reciprocatingforming-die having a shearing edge, of an independent lateralshearing-die having a guide-opening ar ranged at an inclination to theshearing edge of the reciprocating forming-die and cooperating therewithin the feeding, guiding and severing of the blank; substantially asdescribed.

6. The combination with a stationary forming-die and a reciprocatingforming-die having a shearing edge, of an independent lateral die havinga guide-opening through its body and a cold-water chamber surroundingsaid guide opening; substantially as described.

7. The combination with a stationary forming-die and a reciprocatingforming-die having a shearing edge, of an independent lateral hollow diehaving a shearing edge and a guide-opening, and ingress and egress pipescommunicating with the interior of said die for the passage therethroughof cold water; substantially as described.

8. The combination with the forming-dies, of a lateral circulardie-plate, having slots and securing means, also an elongatedguideopening, a water-chamber, and means for supplying the same;substantially as described.

9. The combination with the forming-dies, and the shearing-die having aguide-opening, of the lateral furnace provided interiorly with means forsupporting the blanks in upright positions and for guiding the blankstherethrough, and feeding them into the guideopening in the shearing-diesubstantially as described.

10. The combination with the forming-dies and the shearing-die having aguide-opening and a cold-water chamber, of a deflector, and a lateraladjacent furnace having a guideslot for the blanks arrangedsubstantially coincident with the guideopening, substantially asdescribed.

Signed at New York city, in the county of New York and State of NewYork, this 27th day of March, A. D. 1895.

JOHN W. HUSSEY.

Witnesses:

JACOB FELBEL, K. V. DONOVAN.

